Should O_CLOEXEC be set on POSIX?

[Rufflewind]

Another diff observed while trying to migrate directory to file-io (#4 (comment)):

Should files opened by file-io set O_CLOEXEC to prevent them from being inherited by child processes?

[hasufell]

I think we discussed this already in #5 and the verdict was that this library tries to stay as close to base behavior as possible.

You can use setCloseOnExec explicitly.

[Rufflewind]

You can use setCloseOnExec explicitly.

It isn't thread-safe since another thread can fork the executable between open and setCloseOnExec.

[hasufell]

We can provide a variant openFileWithCloseOnExec, possibly through a .Internal module.

Internal modules still follow PVP, but may not have deprecation periods.

[Rufflewind]

Sounds good.

[hasufell]

https://hackage.haskell.org/package/file-io-0.1.2/candidate

[Rufflewind]

Updated haskell/directory#179 to use openFileWithCloseOnExec: https://github.com/haskell/directory/pull/179/files#diff-cc810a2a20a0b2c54800a706eb4890b14eff0d57b2777d520d64a0c73fa7f140R247

[hasufell]

Published it: https://hackage.haskell.org/package/file-io-0.1.2